Supplier Page from Thermo Fisher Scientific for Tetrabutylammonium hydroxide, 40 wt.% solution in methanol
Epichlorohydrin, 99% from Thermo Fisher Scientific
Esculin hydrate, 97% from Thermo Fisher Scientific
Ethyl 2-hydroxyethyl sulfide, 98% from Thermo Fisher Scientific
Ethyl 3-aminobenzoate, 99+% from Thermo Fisher Scientific